Mechanical lubricator.



No. 829,171. PATENTED AUG. l21, 1906.

W. Q. PPAHLER. l

MECHANICAL LUBRICATDR. Y'

APPLICATION FILED APB. 16,1903.

2 SHEETS-SHEET 2.

A TTORNE YS WJ TNESSES;

5M 6M m7 three ment ,bg

UNLTED sTArEs -PAirENT onirica.

wILrJAM o. rmi-anna', or nLiiirsic, i oHio. MECHANICAL LuBnloATon.

Bpecicatpn of 'Letters Pat'exitr Patented Aug. 2'1, 1906.

ippiicunn iiid prima 190e. serai No. 912013.

It has for its object toprovide a device 'of this character which is capable of noiseless operation, by which the rate of feed of lubricant can be accurately and easily adjusted, and which includes various other improve-l ments whereby the efficiency of the apparatus as a whole is improved.

For a detailed understanding of the invention reference is to be had to the following description, taken in connection with the ac-` com an ingl drawings, and to the claims appen ed creto.

In the accompanying drawings, which illustrate one embodiment of which the invention is capable, Fi ure l is a central longitudinal section of the ubricator, showing parts in elevation. tion thereof. 3 is a plan view, and Figs. 4 and 5 are detai views.

Referring to the drawings, 1 represents the base-plate,A and 2-the top plate, which are both provided with shouldered bosses 3, a ainst the shoulders of which the ends ofthe p unger-cylinder 4 engage. The boss of the ase-plate is provided with a heinispherioal cavity which forms the head of the plungercylinder. Intermediate the head end of the cylinder and the shoulder of the boss is a gasket 5. Supported on the top plate 2 is a frame 6, forming a sup ort for the mechanism for actuating the4 unger 7. The cylinder is held between tie top and base-plates by bolts 8, which also secure the frame 6 in position. The plunger 7 is secured to a threaded rod 8', which is provided with a keyway 9, with which a key 10, carried by the to of the frame, engages. Engagingthe of the rod is a nut 11 whereby the plunger is Inoved in orout oi the c luider.

he nut 1l is held from longitudina movean abutment 12 at one .end and the top of t e frame 6 at the other end. The nut 11 is rotated by an intermittent] -rotated shaft 13 through miter-gears 13, w ich multiply the power. The shaft 13 is suitably Fi 2 is a side elevation of a por- 20, which latter meshes with adapted to impart intermittent motion therean adjustable block'24, w

Athe stroke of the journaled Vin the frame and carries at itsouter cnd a worm-wheel 1 tate therewith by means of a yielding dog or sprin 15, engaging with a'crank 16, keyed to -the s iaft, the-construction of the 'dog being such that the crank can be actuated in one dirc'ctiony by a'li'andleY 17 without imparting motion to the worin-wheel.

Disposed over'tlie worin-wheel and mounted in a frame 18 is a shaft 19', carrying a worm the wheel and is to. ,At the lrear end. of theshaft 19-iskeyed a ratchet-wheel 21, that is actuated by pawls 22. Loosely pivoted on t oscillating` ami 23.upoii which one of the pawls 28 is mounted and which is adapted to receive motion from an eccentric orother moving` part of the apparatus to which the lubricator is applied. The arm is connected to such eccentric or inovinpai't by means of ich isladapted. to be moved endwise of the arin in o der to vary the elective length of the same, and hencel plunger through the ratchet mechanism.

VThe block is provided with teeth which interlock with teeth 25 on the arm, which, in connection with the set-screw 26, securely hold the block in adjustedposition. The upper pawl 22 is pivoted on an upright 27, ,carried by the secondary frame 18. The oscillating aiin 23 and the upright 27 are each provided with a lug 28, in which is mounted a cushion-tipped set-screw 29, the tip of which'may be a piece of rubber or a helical spring, and a ainst which tip a stop 30on the pawl isv adap ed to engage. The object of this construction is to prevent noiseby the pawls when they engage the teeth of the ratchet-wheel. Each paw is held in engagement with the ratchet-wheel by'an extensionspring 31, attached to the pawl at one end and to the arm 23 in the case of the lower pawl and to the upright 2 7 in case of the upper pawl.

In order to render the actuating mechanlisiii inoperative when the plunger hasreached the limit of'its instroke without disconnect- 'ing theoscillating arm from its actuator, the

worm is adapted to'be disengaged from the Worm-wheel, so that no motion is imparted to the latter. For this urpose the secondary frame 18 is pivotal y mounted on the main frame 6 on fulcrums 32 and is held in normal position by a. dog-33, fulcrumed on- 4, which is adapted to ro-l he' shaft' 20 "is an the main frame at 34. The secondary frame and dog are cach provided with a compression-spring 35, that is under tension when the parts are in normal position. The upper end of the dog is formed with a nose 36, located in the path of an adjustable finger 37, carried at the upper end of the plunger-rod. This finger is so positioned that when the plunger reaches the limit of its instroke it will engage the nose of the dog and move it outwardly, so as to release the secondary frame and p ermit the same to tilt under the action of its spring. When the secondary frame is so released, the worm is disengaged from the wheel 14, so that the continued intermittent rotary motion of the worm, due to the continued operation of the ,apparatus that rocks the arm 23, will have no effect upon the plunger.

In order to withdraw the plunger, so that the cylinder can be recharged with lubricant, the crank 16 is turned separately, during which operation Vthe dog 15 yields to the movement of the crank without hindrance. After the crank has been turned sufficiently to move the plunger to its original position and the cylinder has been recharged the secondary frame is restored to its normal position and the dog 33 set to permit the lubricator to continue its operation. The cylinder is recharged through a port 38, adjacent the outer end thereof, which communicates with a suitable source of lubricant. As the plunger moves inwardly the lubricant is discharged through the outlet port or ports 39 in the head of the cylinder.

The plunger 7 is composed of two cupshaped members arranged in telescoping position, the inner or lower one of which is rovided with a circumferential iange 40, w iich forms a shoulder for the packing-rings 41, while the rim 42 of the outer member forms the other shoulder. The two parts of the plunger are held together by the nut 43 on the inner end of the plunger-rod and thenut 44, engaging the thread of the latter.

In accordance with the provision of the patent statutes I have described one emodiment of the invention; but I desire to have it understood that the apparatus shown is merely illustrative and that the invention can be carried out by other means.

What I claim as new, and desire to secure by Letters Patent of the United States, is-

1. The combination of a base-plate, a to late, a cylinder arranged between them with its ends in engagement therewith, members extending from one plate to the other and connected therewith for securing the cylinder between the plates, a frame supported on the top plate and secured in pllace by the said members, a plunger in t e cylinder, and means mounted on the frame for actuating the plunger.

2. The combination of abase-plate and a top plate each provided with a shouldered boss, a cylinder engaging the shoulders of the plates, bolts extending from the base and the top plate for securing the cylinder in place, a supporting-frame carried by the to late which is also secured in place by the bolts, a plunger in the cylinder, and a means supported on the frame for actuating the plunger.

3. The combination of a plunger and cylinder, a supporting structure, a threaded plunger-rod, means arranged to prevent the rod from rotating, a nut for imparting longitudinal movement to the rod a shaft mounted on the structure with its axis at right angles to the rod, means between the shaft and nut for imparting motion to the rod, a wormwheel loosely mounted on the shaft, a crank secured on the shaft, 'means between the crank and wheel for locking the two together for rotating in one direction, a worm meshing with the wheel, and a ratchet mechanism for rotating the worm.

4. The combination of a plunger and cylinder, a nut and screw for reciprocating the plunger, a worm and wheel, a shaft for the Wheel, a speed-reducing gear in permanent mesh between the wheel-shaft and nut for moving the plunger in both directions, a means for rotating the worm, a pivotallymounted support for the worm, and a device for releasing the support to disengage the worm -from the wheel when the plunger reaches the limit efjts stroke in'one direction.

5. The combination of a plunger and cylinder, a screw and nut for reci rocating the plunger, a worm-wheel dispose with its axis at right angles to the screw for actuating the nut, a worm meshing with the Wheel, a ratchet mechanism arranged to rotate the worm and ada ted to be continuously' o erated, a movab e sup iort for therworm w ich normally holds the l wheel, means for releasing the support to ermit the worm to disconnect from the w eel when the plunger reaches the limit of its stroke, and a shaft for the worm-wheel rotatable in one direction independently of the latter for actuating the screw and nut to withdraw the plunger.

6. The combination of a plunger and cylinder, a main frame supported on thc latter, a threaded plunger-rod, a nut mounted in the frame which engages the thread of the rod for actuatin the latter, means for rotating the nut whic is mounted on the frame, a secondary frame pivotally mounted on the main frame, an`actuating mechanism carried by theV secondary frame, a dog or holdingth'e secondary frame in operative position, and a member carried by the lplunger-rod for disengaging the dog and re easing the secpndary frame when the plunger reaches` the limit `of its stroke.

IOO

atter in mesh with the IIO allymounted frame on the main frame, a`

worm carried by the pivotally-mounted frame and engagin the worm-wheel, a ratchet mechanism a so carried by the pivotall -inounted frame and movable therewith, a og for holding the main frame in its normal position, and means for releasing the dog to .render the Worm and wheel inoperative Without affecting the ratchet mechanism when th'e plunger reaches the end of its instroke.

9. The combination of a plunger and cylinder, a Worm-and-wheel mechanism, means intermediate the same and the plunger for actuating the latter, a ratchet-Wheel connected with the worm, pawls coperating with the ratchet-wheel, supports for the pawls, lugs on the supports, cushion-tipped adjustable stops carrled by said lugs, and abutments on the pawls which engage the cushioned ends of the adjustable'sto s.

10. The combination o a plunger and cylinder, a Worm-and-Wheel mechanism for actuatin the plunger, a ratchet-Wheel connected wit the worm, pawls for intermittently rotating the ratchet, an' oscillating arm supporting one of the pawls, and having serrations, a stationary support for the other awl, and a block on said arm by which the atter is adapted to be connected to its actuating mechanism, said block having serrations engaging those of the arm and being adjustable upon the arm to vary the range of movement o the latter.

1 1. The combination of a plunger and eylinder, a threaded plunger-rod, an actuatingnut engaging the thread thereof, a main frame supporting the nut, a miter-gear for actuating the nut,'awormwheel gear for actuating the miter-gear, a movable support for the worm mounted on the main frame, a mechanism for intermittently rotatin the the same 1n norma iosition, a spring for moving the support when the dog is released to disen age the worm from the wheel, and an adjusta le fin er on the outer end of the plunger-rod W ich is adapted to actuate the dog when the plunger reaches the end of its stroke.

12. The combination of a plunger and cylinder, a. threaded lunger-rod, an actuatingnut engaging the tliread thereof, a frame supporting the nut, a shaft mounted on the frame, a gearing between the shaft and nut, a worm-wheel loosely mounted on the shaft, a crank on the shaft, means between the crank and wheel for locking the two together to rotate in one direction to move the plunger inwardly and for disconnecting the crank and wheel to permit the former to withdraw the plunger.

worm, a dog engagin the support for ho ding 13. The combination of a plunger and cylinder, a longitudinally-movable and non-rotatable threaded lunger-rorl, an actuatingnut engaging the t read of the rod, a plunger movable with the rod comprising two parts arranged in telescoping relation and one part being rigidly and the other adjustably secured to the rod,` a packing assembled between the parts of the plunger, and a nut engaging the thread of the rod for adjustin the adjustable part of the plunger and ho ding the parts together and the packing under compression.

In testimony that I claim the foregoing as my own I have hereto alixed my signature in the presence of two witnesses.

WILLIAM Q. PFAHLER.

Witnesses:

A. A. SLAYBAUGH.

W. A. BELL. 

